[libvirt] [PATCH 08/10] Re-write virsh console to use streams
Daniel P. Berrange
berrange at redhat.com
Tue Nov 2 17:51:57 UTC 2010
On Mon, Nov 01, 2010 at 03:55:08PM -0600, Eric Blake wrote:
> On 11/01/2010 10:12 AM, Daniel P. Berrange wrote:
> > This re-writes the 'virsh console' command so that it uses
> > the new streams API. This lets it run remotely and/or as a
> > non-root user. This requires that virsh be linked against
> > the simple event loop from libvirtd in daemon/event.c
> > As an added bonus, it can now connect to any console device,
> > not just the first one.
> >
> > * tools/Makefile.am: Link to event.c
> > * tools/console.c, tools/console.h: Rewrite to use the
> > virDomainOpenConsole() APIs with streams
> > * tools/virsh.c: Support choosing the console name
> > via --devname $NAME
> > ---
> > .x-sc_avoid_write | 1 +
> > tools/Makefile.am | 1 +
> > tools/console.c | 330 ++++++++++++++++++++++++++++++++++++++++-------------
> > tools/console.h | 2 +-
> > tools/virsh.c | 76 ++++---------
>
> tools/virsh.pod changes?
>
> > + if (con->terminalToStream.data[con->terminalToStream.offset] == CTRL_CLOSE_BRACKET) {
> > + con->quit = true;
> > + return;
> > + }
>
> Is there any way to type an escape sequence, such as ^v in common stty
> usage, in order to allow sending a literal ^] through to the console
> instead of always making it quit?
Not at this time. This was also true of the old impl, so not a regression
>
> >
> > + if (con) {
> > + if (con->st)
> > + virStreamFree(con->st);
>
> Should virStreamFree tolerate a NULL argument, at which point it should
> be added to the list in cfg.mk of free()-like functions that should not
> have an extra if() preceding usage?
Our public APIs all raise an error if you pass NULL to any of the
virXXXXXFree() APIs.
Daniel
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